Extension-truss decorative staging.



No. 677,066. v Patented June 25, l90l.

A. G. COUTURE.

EXTENSION TBUSS DECORATIVE STAGING.

{Application filed. Mar. 14, 1901.

3 Sheets-Sheet I.

(No Model.)

Attorneym v Inventor.

60 6c doll/2 W itnesses.

: Nonms wrrzas co. Pucr'muma. WASHINUYON n c No. 677,066. Patented June25, I90]. A. G. COUTURE.

EXTENSION TRUSS DECORATIVE STAGING.

(Application filed Mar. 14, 1901.: No Model.) 3 Sheets-Sheet 2.

Inventor Wit messes.

. I Tn: nouns int m. NOTO-UYHQ. wmmamu, a c.

No. 677,066. Patented lune 25, I9OI.

A. G. COUTURE.

EXTENSION TBUSS DECORATIVE STAGING.

3 Sheets-Sheet 3.

(Application filqd Mar 14,- 1901.)

(No Modal.)

ru: "cams FETER$ CO. PHOTO-LITHQ. wnsnms'rou, 04 c.

UNITED STATES PATENT OFFICE.

AMEDEE G. COUTURE, OF PROVIDENCE, RHODE ISLAND.

EXTENSION-TRUSS DECORATIVE STAGING.

SPECIFICATION forming part of Letters Patent No. 677,066, dated June 25,1901. Application file'd March 14, 1901: Serial No. 51,064. lll'omodel.)

To all whom it may concern.-

Be it known that I, AMEDEE G. COUTURE, a resident of the city ofProvidence, in the county of Providence and State of Rhode Island, haveinvented certain new and useful Improvements in Extension-TrussDecorative Staging; and I do hereby declare that the following is afull, clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This invention relates to that class of portable staging especiallyadapted for use in buildings such as churches, theaters, and the like.

The object of the invention is to provide a staging that shall beperfectin itself and not depending on anything outside of it for sidesupports, to be used in painting, decorating, and performing other workinside of buildings either in constructing or repairing them.

It is fully described and illustrated in this specification and theannexed drawings.

Figure 1 represents a top view of the staging. Fig. 2 is a verticalsection of the staging, taken on line 2 2 in Fig. 1. Fig. 3 is avertical section of the staging, taken on line 3 3 in Fig. 1 at a rightangle to the section shown in Fig. 2. Fig. 4 is an enlarged view of oneof the brace connections with a ladder. Fig. 5 is a view of a lock forthe brace connection. Fig. 6 represents an enlarged View of one of thespring-catches to hold the upper ladders. Fig. 7 is a side view of thejoint in the platform-ladders.

The staging is constructed mainly of ladders, and the fourcorner-supports are alike in construction and in operation, which areasfollows;

K K are the lower sections, and D D are the upper sections, of thesupporting-ladders placed at each corner of the structure. The uppersection-ladders D are arranged to slide up and down by the lowersection-ladders K and are secured to them by iron clamps O O, which aremade fast to the lower ends of the upper ladders and slide on the lowerladders K, and also by the clamps N N, that are made fast to the upperends of the lower ladders and through which the upper ladders D slide.Each upper section ladder is raised 'by a rope J and pulley-blocks a a,one of which blocks a is made fast to the upper end of the lower ladderK and the other block a is attached to the lower end of the upper ladderD. The rope J has one end made fast to the block a, and after passingthrough the blocks a and a the fall is carried downto the floor to bemade fast to the lower ladder. The supporting-ladders K, that form thecor ners of the staging, are held steady by side braces F F, which aresecuredto the sides of the ladders K by means of swiveling socketirons GG, which consist of a shouldered pin is, (see Fig. 4,) that passesthrough the side of the ladder K and is secured in place by aspring-clamp n. (Seen separately in Fig. 5.) The upper end of the clampn is opened by pressing the lower ends together, and then it is allowedto close in the groove r in the pin 70. The outer end of the pin is hasan eye made in it, on which a forked tang p, which is driven intotheupper end of the brace F, is pivoted, the whole forming a connectionbetween the two that allows the brace to be turned and set in anydirection from the ladder. The upper section-ladders D are held up bymeans of spring-catches 9, (shown enlarged in Fig. 6,) which consist ofa catch y, held fast to the upper ladder D by a pin 8, and catching onone of the rounds of the lower ladder K prevent the upper ladder fromsliding down.

A is a movable platform (see Fig. 1) consisting of two horizontalladders-B B, that can be raised and lowered by means of the ropes V V,which pass through the pulleyblocks 0 0', one of which, 0, is attachedto the upper end of the upper section-ladder D, and the otherpulley-block, c, is made fast to an iron bracket H, secured to one ofthe horizontal ladders B. One end of the rope V is made fast to thelower end of the block 0, and after passing through the block a it iscarried up through the block 0 and down to the floor, where it can beeasily handled and made fast. Cross-joists d d are laid from one of thehorizontal ladders B to the other, and the boards I) b are laid on thesejoists to form a platformfioor on which the workmen stand.

The horizontal ladders B of the scaffold are braced from the uppersection-ladder D by means of short ladders E E, which are sedesired.

cured to ladders B and D by means of U- shaped clamps ff, thatpassaround the rounds in those ladders and are secured on the ends of thebrace-ladders E by bolts with thumbnuts, so that they can readily bechanged when A wire-cable truss L L is placed under each horizontalladder B and secured at the ends to help sustain any weight that may beplaced upon the platform, and rubber rollers O O are held on pivots atthe upper ends of the upper and lower section-ladders D and K to preventinjury to the walls against which they may rub or rest.

Fig. '7 shows my method of extending the staging laterally by making thehorizontal ladders l3 B in two parts and connecting them I together inthe same way that the sectionladders K D are, so that one ladder willslide upon the other, and then putting bolts 6 through the clamps C tohold the two parts firmly in position.

Having thus described my improvements, I claim as my invention anddesire to secure by Letters Patent- I, In a staging of the characterdescribed, supports for a platform consisting of the combination of alower section of ladders, side braces adjustably secured to saidladders, an upper section of ladders sliding upon said lower section, amovable platform, with means for sliding the upper section of ladders upand down and means for raising and lowerin'g said platform,substantially as described.

2. In a staging of the character described, supports for a platformconsisting of the comewgoee bination of a lower section of ladders, anupper section of ladders sliding upon said lower section, a movableplatform, with means for sliding the upper section of ladders up anddown and means for raising and lowering said.

platform, substantially as described.

3. A portable staging having corner-supports constructed of ladders, incombination with a movable platform consisting of horizontal ladderswith a floor laid thereon, ladders diagonally arranged and attached tosaid supporting ladders and the horizontal ladders as braces, blocks andropes attached to said ladder-supports and said platform to support it,substantially as described.

4. A portable staging having corner-sup ports made of an upper sectionof ladders and a lower section of ladders a pair of pulleyblocks to eachupper and lower ladder, one

of said pair of blocks being attached tothe upper end of the lowerladder andthe other block of the pair made fast to the lower end of thesaid upper ladder, a rope rove in said pulley-blocks, a movableplatform, a pulleyblock attached to the upper end of each upper ladder,pulley blocks attached to the platform, a rope rove in each pair ofblocks,

substantially as described.

In testimony whereof I have hereunto set my hand this 12th day of March,A. D. 1901.

AMEDEE G. COUTURE.

In presence of- BENJ. ARNOLD, O. S. MARSH.

